Medication via liquid feeds – a follow up

Following my original weblog on medicating liquid feeds, it appears the Dutch have adopted a pragmatic approach and have come up with a voluntary code for testing the stability of VMPs (Veterinary Medicinal Products) in liquid feed, which can then go on their IKP (pig meat producers) list for use. These stability tests are carried out at 20 and 32 degrees centigrade and at different pHs 3.5 (acidic), 4.5 and 5.5, over a 24 hour period. Ideally, there should be little degradation (